baber/WOPTO huggingface dataset:
Patent GB-841520-A (GB)
Title: Improvements in or relating to iris control means in television cameras
Inventor: TROTT FRANK RUNCORN
IPC: H04N5/225
Filed: 1955-08-25
Abstract: 841,520. Lens aperture indication. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 23, 1956 [Aug. 25, 1955], No. 24409/55. Class 40 (1). Indication of the f/ number setting of the iris of a camera is given on a meter 7 by causing the variation in the setting-ring of the iris to vary a resistance 4 in a circuit shown in Fig. 2 and hence vary the current through the meter. Resistance 8 is added to make the scale more linear and the value of resistance 12 is fixed in such a way as to make best use of the scale of the meter for the full range of iris settings. When more than one lens is fitted to the camera the circuit is modified as in Fig. 3. Here the position of the switch Sa is determined by which lens is in operation and resistance 9 is added in such a manner as to allow both circuits to use the same scale on the meter. The resistance element 4 may be mounted on the iris setting ring 1 as shown in Fig. 1, and arranged to contact wiper 5. As lenses are changed different rings 1 may be brought into contact with 5.
Patent GB-440284-A (GB)
Title: Improvements in or relating to saddles or seats particularly for vehicles and of the type common to velocipedes, motor cycles and the like
IPC: B62J1/02
Filed: 1934-08-25
Abstract: 440,284. Saddles. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and LIVINGS, G. J., 2, Cambridge Street, Manchester. Aug. 25, 1934, No. 24534. [Class 136 (iii)] In a cycle &c. saddle the usual pre-formed top or seat is supported upon a cushioning-layer of sponge or cellular rubber interposed between the top and the underframe. A cushion or pad 1 of sponge or cellular rubber is interposed between the usual top 2 of leather, moulded rubber and canvas, &c. and a support 3 secured to the peak and cantle plates and formed of one or more plies of canvas &c. In order to permit of relative movement between the top 2 and the underframe, the peak part of the top is secured by rivets &c. 7, Fig. 2, to two clips or strips of metal 6 adapted to fit around the stretcher wires 8 in such a way as to be free to slide along them.
Patent GB-1160544-A (GB)
Title: Method and apparatus for Preventing Condensation
Inventor: MILTON REGINALD FRANK
IPC: F24F13/22
Filed: 1965-06-10
Abstract: 1,160,544. Air cooling installations. R. F. MILTON. 22 Aug., 1966 [10 June, 1965], No. 24568/65. Heading F4S. A heat exchanger for preventing the condensation of moisture on articles contained in a closed compartment comprises an outer stainless steel tube 11, having a conical portion 12 at its lower end leading to a collecting tube 14 connected to a drain 15 which extends out of the compartment, a copper helical pipe coil 21 through which brine at approx. 2‹ C. is pumped from a refrigerating unit outside the compartment, and a fan 20 having an electric motor 19 mounted on bracket 18 for drawing air upwardly through the heat exchanger, moisture condensing from the air due to cooling and running off via drain 15. Fibreglass insulation 17 is provided between the tube 11 and an outer casing 16. The fan may be omitted, in which case air circulates in the opposite direction due to convection.
Patent GB-1306965-A (GB)
Title: Electrically powered four-wheeled vehicle
IPC: A61G5/04
Filed: 1970-05-21
Abstract: 1306965 Invalid carriages P E C UDDEN B H ENGMAN and S GRAF 21 May 1970 [2 June 1969] 24577/70 Headings B7B and B7H An electrically powered invalid carriage has a rear frame part mounting the drive wheels and a front frame part mounting the steering wheels 9, 10, the two parts being interconnected by interfitting tubes 21, 22 which allow axial and rotational movement between the frame parts. Each of the drive wheels may be powered by a motor 3, 4 or one motor may drive both wheels via a differential gear. A steering arm 16, pivoted at 23, controls the wheels 9, 10 via the links 13, 14, 15.
Patent GB-504020-A (GB)
Title: Improvements in or relating to electric circuit timing device
IPC: H03K17/288
Filed: 1937-09-09
Abstract: 504,020. Valve relay circuits; control systems for consumption apparatus. IGRANIC ELECTRIC CO., Ltd. Sept. 9, 1937, No. 24602. Convention date, Sept. 11, 1936. [Class 40 (v)] [Also in Group XXXV] The energization period of an electromagnetic relay is timed by connecting the relay coil in series with a condenser, the discharge current of which energizes the coil, in which means are provided for varying the duration of flow of the said current. Fig. 1 shows an arrangement already described and claimed in the prior Specification 29319/38, for operating the circuit of a welding transformer 18 for accurately determined short periods of time at predetermined intervals. L<1>, L<2>, L<3> represents a three-phase A.C. source across one phase of which the transformer 18 is connected through switch 17, a further transformer 1 being connected across the same phase. 2 is a three-phase transformer with an adjustable single-phase secondary 2b supplying a glow discharge tube 11. To switch on, the switch 14 its depressed, thereby placing the condenser 20 and valve 15 across the battery B, which is simultaneously connected across condenser 9 through resistance 21. The grid of valve 7 is negatively biassed from the rectifier circuit 3 ... 6 and the valve is inoperative until switch 14 is depressed. As soon as 7 passes current, relay 8 operates to insert resistance 10 in series with condenser 13 across the glow-tube 11. At a given moment in the A.C. cycle, determined by the position of the secondary winding 2b, the tube 11 flashes and a steep voltage wave is impressed on the valve 15 which momentarily conducts to charge the condenser 20 and operate relay 17b thereby supplying current to the weld from winding 18. When condenser 20 is fully charged, anode current in 15'ceases and relay contact 17 again open-circuits transformer 18. The welding time is variable by varying the capacity of condenser 20. The arrangement above described is modified, according to the present invention, by replacing the relay switch 17 by a saturable reactor to control the welding current. In the modification of Fig. 3, condenser 20 is charged through the rectifier 23 and resistance 22. Operation of pilot switch 14 disconnects condenser 20 from the line and connects it in series with relay 17b and valve 15 which is triggered into operation by a sharp pulse of grid potential from circuit 2b, 10 ... 13 as in Fig. 1. In a further modification, Fig. 4 (not shown), the condenser is charged and discharged through valve 15 by means of a manually-operated pilot switch. The valves may be replaced by other forms of rectifier, e.g. a rotating commutator. Reference has been directed by the Comptroller to Specification 481,054, [Group XXXVII].
Patent GB-646622-A (GB)
Title: Improvements in or relating to arrangements for effecting a measuring, indicating orcontrol operation by an electric current
Inventor: LOVEGROVE HENRY JOSEPH
IPC: G01R19/18
Filed: 1948-09-20
Abstract: 646,622. Current and voltage measuring. SANGAMO WESTON, Ltd. Sept. 20, 1948, No. 24623. [Class 37] A weak direct voltage e is applied to a relay A1, Fig. 1, and resistance R1, the relay controlling current from E until the p.d. across R1 due to e is equal and opposite to that due to E, the current from E through R1 being measured or used for control purposes. A weak direct current may be similarly measured. Potential responsive apparatus.-As shown in Fig. 1, a small input potential e applied at 10, 11, energizes relay Alto close contacts d, a1, ord, a2 and put winding A2 in circuit, which also acts on contacts d, a1, a2, to ensure that relays B or C are actuated ; relays B, C energize motor M in the appropriate direction to move slider S on potentiometer P, and self-interrupt by actuating relay D to de-energize winding A2 ; the motor is thus de-energized and consequently moves in small steps until the current through R1 from the potentiometer P produces a p.d. balancing that applied at 10, 11. In a modification, Fig. 2, the relay A1 closes contacts a, a1, a, a2 to vary the bias on valve V and thus alter the current through R1 until the p.d. across R1 balances that applied at 10, 11. Current responsive apparatus.-By applying the current at 10, 11, Fig. 3, across the relay A1, the system of Fig. 1 is modified so that balance is attained when the current through A1 from 10, 11 is equal and opposite to that through A1 from the potentiometer P, the meter I recording the related and larger current through R1. A similar modification can be made to Fig. 2, Fig. 4 (not shown).
Patent GB-753963-A (GB)
Title: Improvements relating to pneumatic vehicle wheel tyres
IPC: B60C1/00
Filed: 1954-08-24
Abstract: 753,963. Pneumatic tyres. PIRELLI SOC. PER AZIONI. Aug. 24, 1954 [Nov. 6, 1953], No. 24631/54. Class 144 (2). In a tyre cover constructed as described in Specifications 700,435 and 726,810, a shockabsorbing rubber layer 6 is incorporated between the tread 2 and the reinforcing or breaker plies 3 and/or between the breaker plies 3 and the carcase plies 1, the layer 6 having a low tangential modulus of elasticity, such as less than 5 Kg/cm.<SP>2</SP>, and preferably a relatively high hysteresis loss coefficient such as higher than 0.5 Joules/cm.<SP>3</SP>. Where a shock absorbing layer is incorporated between the breaker and the carcase it may comprise two triangular-section bands located below the marginal portions of the breaker. The layer or layers 6 may be produced by using, in the buildup of the tyre, a vulcanizable rubber mix containing an ingredient which reacts under the heat of vulcanization to produce a gas resulting in a sponge rubber having a tangential modulus of elasticity of the order of 1 to 3 Kg/cm.<SP>2</SP>. The mean thickness of the shock-absorbing layer 6 may be from 2 mm. to 10 mm.
Patent GB-813771-A (GB)
Title: New di-imidazole derivatives and process for their manufacture
IPC: D06M13/35
Filed: 1955-08-26
Abstract: The invention comprises compounds of the formula <FORM:0813771/IV (b)/1> where A is an aromatic nucleus (which may be substituted) attached by vincinal carbon atoms, and R and R1 are H or the same or different alkyl, hydroxyalkyl or benzyl groups.  Preferably the groups R and R1 have 1 or 2 carbon atoms and A is unsubstituted, but the latter may have halogen, alkyl or alkoxy substituents.  The invention also includes salts of the products, e.g. with sulphuric, hydrochloric, nitric, formic or acetic acid. The compounds are made by reacting, with or without a catalyst, the appropriate o-diamine with malic acid or a functional derivative thereof (e.g. lower alkyl ester).  The reaction proceeds via the malic acid diarylide which may or may not be isolated.  Alternatively an o-nitroamine can be diacylated, the nitro group reduced and the product ringclosed.  The groups R and R1 can (if identical) be present as substituents in the starting material or can be introduced into the di-imidazole by standard methods.  Examples are given of (1) the reaction between o-phenylene diamine and dl-malic acid in aqueous sulphuric acid to give the sulphate of 1 : 2-di-(benzimidazyl)-ethanol, and the introduction therein of (a) two N-methyl groups; (b) two N-benzyl groups; and (c) one N-hydroxyethyl group, with dimethyl sulphate, benzyl chloride and ethylene chlorhydrin respectively; (2) the reaction between 2-methylamino-aniline and malic acid in aqueous sulphuric acid to give the di-N-methyl-derivative directly.  Other amines that can be used are 5-chloro-, 5-methyl- and 5-methoxy-o-phenylene diamines and 1 : 2-naphthylene-diamine.
Patent GB-443375-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L17/04
Filed: 1934-08-27
Abstract: 443,375. Pipe joints. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Champion Machine & Forging Co. ; 3695, East 78 Street, Cleveland, Ohio, U.S.A.) Aug. 27, 1934, No. 24657. [Class 99 (i)] The pipes are joined by a two-part sleeve 10 having recesses 16 each containing a pair of semicircular spring members 19, Fig. 3, which have teeth 20 to grip the pipes and external projections 22 which contact with the bottom of the recesses. The recess walls are inclined at 18 so that if the pipes move apart the grip of the members 19 is tightened. A self-sealing gasket 14 contacts with the pipes only at beads 15<b>, 15<c>.
Patent GB-1455822-A (GB)
Title: Sampling rate changer
IPC: H04N11/04
Filed: 1973-05-23
Abstract: 1455822 Television; pulse modulation BRITISH BROADCASTING CORP 20 March 1974 [23 May 1973] 24667/73 Headings H4F and H4L The sampling rate of television or sound signal in pulse form is altered by (a) interpolating between input samples to provide samples having the required information content for the output samples, and (b) re-timing the samples to provide the correct timing for the output samples, the steps (a) and (b) being carried out in either order or simultaneously. The signals may be digital (e.g. PCM) signals or signals comprising analogue samples. Conversion between a sampling rate of 32 KHz for radio sound and 31À32 KHz for television sound, and between television video sampling rates of 851 times line frequency and 3 times PAL colour subcarrier frequency are referred to. The latter conversion is described for a 625/50 PAL signal in which it is possible to reduce the required number of interpolation coefficients from 1À6 x 10<SP>6</SP> to 2,304 by changing the interpolation coefficients only between lines, and to further reduce the number to 4 by ignoring the 25 Hz offset during active fields.
Patent GB-247102-A (GB)
Abstract: 247,102. Davis, G. Sept. 1, 1925. Disc wheels; hubs. - A wheel for children's cycles, scooters, &c. and for the lighter forms of warehouse truck, comprises a disc 1 formed of elm or other hard wood and circumferentially grooved to carry a metal rim 2 fitted with a pneumatic or solid tyre 3. The hub consists of two similar steel pieces 4 abutting in the centre of the wheel and flanged for screwing or bolting to the disc 1, and is preferably carried on balls, which may be secured in separating rings free to rotate between concentric races, the upper race being grooved to engage the hub flange bolts to prevent relative rotation between the race and the disc 1.
Patent GB-988148-A (GB)
Title: Continuous form notepaper and similar style stationery
Inventor: MARTIN JAMES FRANK
IPC: B41L1/32
Filed: 1961-07-08
Abstract: 988,148. Continuous form stationery. JOHN WADDINGTON Ltd. Sept. 19, 1962 [July 8, 1961], No. 24802/61. Heading B6A. Continuous form stationery comprises two or more superposed lengths of record paper with an interposed length or lengths of carbon paper, all secured together by a longitudinal line of stitching near one edge only of the assembly. As shown, the lengths of record paper 1, 2 and 3 and the lengths of carbon paper 4 and 5 are stitched together along a line 10 of stitching, preferably lock-stitching, which is loose enough to allow slight relative movement of the lengths, and each length is weakened transversely along spaced lines 11. The carbon papers do not extend to the right-hand edges of the record papers. Longitudinal rows of apertures 6, 7 are formed in the record papers, and a longitudinal row of apertures 8 is formed in the carbon papers to coincide with the apertures 6. All the papers have a longitudinal tear line 9.
Patent GB-241708-A (GB)
Title: Improvements in apparatus for the separation and collection of dust and the like from flues and for similar purposes
IPC: B04C3/00
Filed: 1924-10-18
Abstract: 241,708. Yates, W., and Matthews & Yates, Ltd. Oct. 18, 1924. Density separators.-Dust laden air is led tangentially into the casing b by the inlet a; the spiral plate c forces the dust downwards and the clean air passes out through the chimney g. The dust falls between vertical baffle plates d and can be removed from the casing though doors e. A cone f rests on the baffles d and assists in guiding the air. The inlet a is of considerable depth but its radial width is small.
Patent GB-371738-A (GB)
Title: Improvements in or relating to piston steam engines
IPC: F01B17/04
Filed: 1931-09-04
Abstract: 371,738. Steam engines. OLSEN, W. L., Fredriksstad, Norway. Sept. 4, 1931, No. 24872. [Class 122 (i).] In a compound steam engine, the steam channels between the cylinder and slide-valve chest and between the individual cylinders in the bottom end of the engine are made as cast channels, while the steam passage in the tops end consist of elastic pipes allowing different expansions of the cylinders and valve chests respectively in the longitudinal direction. In the construction shown in Fig. 1, the cylinders 1, 4 and the valve chest 2 are cast in one. The bottom steam channels 8, 9 are cast ; the top ends of the cylinders are connected to the chest by pipes 10, 11. In the construction shown in Fig. 2, the high-pressure cylinder 1 and the valve chest 2 are cast in one, and the cylinder 4 is cast separately. 'The castings are connected by flanges 12, 13 at the bottom the low-pressure cylinder is connected at the top to the chest 2 by a pipe 11. In further modifications, the cylinders and valve chests comprise three castings secured at the bottom ends by flanges and at the tops connected by pipes. The valve chest may be made in one with the bottom end of the high-pressure cylinder, or it may be subdivided and the parts connected by flanges.
Patent GB-586346-A (GB)
Title: Improvements in gutter brackets
IPC: E04D13/072
Filed: 1944-12-12
Abstract: 586,346. Gutter brackets. TARRAN, R. G. Dec. 12, 1944, No. 24874. [Class 52 (v)] In an arcuate gutter bracket of strip metal, the arcuate part 1 is secured by rivets or spot welds 2, 3 to a strip 4, which is bent to form a tangential part 5, an upright limb 6 and a hook 7, which hooks over the fascia board of a building, a tongue 9 being driven into said board to prevent detachment of the bracket. In a modification, the hook 7 and arcuate-part 1 are integral, the tangential part 5 having a lug which is nailed to the fascia board, though a tongue similar to tongue 9 may serve as securing means.
Patent GB-893668-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: BROWN GORDON
IPC: G21C11/08
Filed: 1959-07-20
Abstract: 893,668. Cooling reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. July 1, 1960 [July 20, 1959], No. 24927/59. Class 39(4) The coolant gas ducts 4 of the nuclear reactor 1 are shielded from the neutron flux of core 3 by shields 5. The latter is formed of layers, starting from the core, comprising boron steel, graphite, boron steel, graphite, boron steel, graphite with a final thermal shield of mild steel. Coolant flows into the pressure vessel 1 through the annular channel between ducts 16, 17, passing into the supporting grid 8, upwards over the fuel elements 21 and into header 14, leaving through the inner coaxial duct 16. The coolant is circulated by blowers 30 through the pressure vessel 2 and heat exchangers 29 which are supported on bearings 25 to permit thermal expansion. Specifications 785,528 and 803,382 are referred to.
Patent GB-728885-A (GB)
Title: Improvements in and relating to dishwashing apparatus
IPC: A47L15/23
Filed: 1953-09-09
Abstract: 728,885. Dish-washing machines. GENERAL ELECTRIC CO. Sept. 9, 1953 [Sept. 10, 1952], No. 24965/53. Class 138 (1). A dish-washing machine 1 comprises a tub 5 containing withdrawable upper and lower open-work racks 13, 14, for articles to be washed and has a rotatable device 30 for directing and distributing liquid over articles in the upper rack 13, mounted on the lower rack 14 with an inlet opening of the device facing downwardly, so as in operation to receive an upwardly directed jet 38a of liquid from nozzle means 39 so positioned and supported in the tube 5 as not to obstruct withdrawal of the racks 13, 14. The machine is mounted below a counter 2 and has a front opening door 11 which when open can receive in known manner the racks 13, 14 which are mounted one on the other, the lower rack having rollers 15, 16 to engage rails 17 in the tub or to roll on the door. The device 30 is rotatably mounted on a conical base 36 carried by four upright wires 34 of the lower rack and is rotated by the reaction of liquid issuing from two oblique orifices 31. An extension member 37 of one wire 34 is bent over to engage the top of the device 30 and retain it on the base 36. The nozzle 39 is centrally arranged in a main reaction spraying device 22. A pump 25 connected with a tub sump 27 by a pipe 26 supplies the sprayer 22 with liquid through a pipe 23. A valve 29a is so arranged that the pump 25 either circulates liquid in the machine or discharges to waste through a pipe 29. In a modification the liquid jet from the central nozzle of the main sprayer is supplied to a tubular member carried by the lower rack. A reaction rotated sprayer device is then mounted on the top of the tubular member. By reason of the conical base 36 or the tubular member, slight misalignment of the rack carried spraying device with the nozzle on the main sprayer is permissible. U.S.A. Specification 2,035,625 is referred to.
Patent GB-1533674-A (GB)
Title: Auxiliary device for a connection to a mining machine
IPC: E21F13/00
Filed: 1976-06-16
Abstract: 1533674 Roller-and-breast mills DRESSER EUROPE SA 3 June. 1977 [16 June 1976] 24980/76 Heading B2A [Also in Division E1] A crusher 1 for comminuting mineral on a conveyer along which the crusher is towed by a conveyer mounted, longwall mining machine 5 comprises an underframe 2, a driven breaker rotor 8 carried by the underframe, and reaction means 12 so mounted in the underframe as to be spaced from the rotor so that large mineral being conveyed through the crusher by the conveyer will be broken up on passing between the breaker rotor and the reaction means 12 as the rotor is rotated. Preferably the reaction means 12 is an upright plate and the rotor is rotatable about a vertical axis. Means, e.g. a pistoncylinder unit, is provided for adjusting the spacing of the rotary element from the reaction means and this adjustment means may be associated with an overload device, e.g. a relief valve. The breaker rotor 8 can be mounted on an arm 7 pivoted at one end to the underframe 2. The rotor can be so configured that besides crusher picks 14 there are provided on the rotor, blades 5 that can be adjusted vertical with respect to the rotor and are for picking up and loading on to the conveyer mined mineral lying beside the conveyer.
Patent GB-999466-A (GB)
Title: Ice cream and like biscuits
IPC: A23G9/28
Filed: 1962-06-29
Abstract: 999,466. Ice-cream cornets. J. GRECO. May 29, 1963 [June 29, 1962], No. 24991/62. Heading A2B. An ice-cream biscuit of hollow, conical shape has, around the upper, open end of the cone a trough 2 with an upstanding rim 3, and the walls of the trough are connected by a plurality of radial webs 6 which extend to the base of the trough to form pockets closed at the bottom and sides.